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#a1fb21

a balanced, electric green · cool · closest name: lime

RGB
161, 251, 33
HSL
85°, 97%, 56%
CMYK
36, 0, 87, 2
Luminance
0.7668

Every format

HEX#a1fb21
RGBrgb(161, 251, 33)
HSLhsl(85, 97%, 56%)
CMYKcmyk(36%, 0%, 87%, 2%)
LABlab(90.2 -55.5 83.0)
LCHlch(90.2 99.8 123.7)
OKLCHoklch(0.897 0.239 131.3)

Copy-ready code

/* CSS */
color: #a1fb21;
background-color: #a1fb21;
/* Tailwind (arbitrary) */
class="text-[#a1fb21] bg-[#a1fb21]"
/* SCSS */
$brand: #a1fb21;
/* SwiftUI */
Color(red: 0.631, green: 0.984, blue: 0.129)
/* Android */
Color.parseColor("#a1fb21")

Accessibility — WCAG contrast

Aa
#a1fb21 on white: 1.29:1
AA ✗ fail · AA-large · AAA
Aa
#a1fb21 on black: 16.34:1
AA ✓ pass · AA-large · AAA
true color
protanopia
deuteranopia
tritanopia

RGB percentages

Red63.1%
Green98.4%
Blue12.9%

CMYK percentages

Cyan35.9%
Magenta0.0%
Yellow86.9%
Key (black)1.6%

Color previews

#a1fb21 text on a black background

contrast 16.34:1

Card sample

#a1fb21 text on a white background

contrast 1.29:1

Card sample

CSS3 live lab

Text font color

The quick brown fox

color: #a1fb21;
Background color
Panel with #a1fb21 background
background-color: #a1fb21;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #a1fb21;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(161, 251, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(161, 251, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a1fb21;
background: linear-gradient(135deg, #a1fb21, #21FB32);

Monochromatic scale

Palettes built from #a1fb21

Shades — darker

Tints — lighter

Hue & tone neighbors

Color harmonies

Nearest named colors

Work with #a1fb21 in the Color Lab